Pressure-induced non-fermi-liquid behavior of PrNiO3

Comprehensive temperature scans of the resistivity of a high-quality sample of PrNiO3 were made under different pressures up to 30 kbar; they have revealed that the insulator phase is suppressed completely at P approximately equal to 13 kbar, transforming to a non-Fermi-liquid phase in which the res...

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Veröffentlicht in:	Physical review letters 2005-06, Vol.94 (22), p.226602.1-226602.4
Hauptverfasser:	ZHOU, J.-S, GOODENOUGH, J. B, DABROWSKI, B
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Conductivity phenomena in semiconductors and insulators Electronic transport in condensed matter Exact sciences and technology Low-field transport and mobility piezoresistance Physics
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Beschreibung
Zusammenfassung:	Comprehensive temperature scans of the resistivity of a high-quality sample of PrNiO3 were made under different pressures up to 30 kbar; they have revealed that the insulator phase is suppressed completely at P approximately equal to 13 kbar, transforming to a non-Fermi-liquid phase in which the resistivity varies as Deltarho=rho(T)-rho(0) approximately T(n) with n=1.33 and 1.60 over a broad pressure range.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.94.226602